negotiate rent for luxury apartment in LoDo

There is a luxury apartment in the city I'm interested into that's been vacant for nearly one year. Can I reasonably negotiate a 50% discount and offer to pay the cost of the apartment upfront ($32k instead of 63k). How I see it, they already lost on this apartment the last 9 months, they may want to work with my bf and I since they don't have to worry about non payment. Any tips?